X m molding m-achsnery



2 Sheets-Sheet (No Model.)

PatentedMay 13y 1896.

B. F. RITTENHOUSE.

(No Model.) 2 Sheets-Sheet 2.

B. P. RITTENHOUSE. MOLDING MACHINERY.

Patented May 1s, 1890.

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llamen diaries Farrar -rriem BENJAMIN F. Rrrrnnirousn, or ANo,narsrowrtrauNsvLvANm..

MoLoiNc Mach-unser.

SPECIFICATION formngpart o'f Letters Patent No. 427,708, dated May 13, 1890.

4 v Y Application iilod January 22, 1890. Serial No. 337,704. (No model.)

To a/ZZ whom it may concern: Be it known that I, BENJAMIN F. Rrr'rnn HOUSE, of Norristown, county of Montgomery,

and State of Pennsylvania,have invented'an.

Improvement in Molding Machinery, of which the following' is a specification.

My invention has reference to molding ma-vv chinery; and it consists of certain improvem ents,which are fullyset forth in the following Vspecification and shown in the accompanying drawings, which form`a part thereof.

.My invention has particular .reference to machines especially adapted for casting car# 1 wheels, and embodies a construction in which the mold is formed of metal and is provided with mechanism whereby it may be rotated' Vduring the 4admittance of the molten metal to the mold. Furthermore, the mold is combined With a truck in such a manner that after the wheel has been cast it may be liberated from the mold and conveyed upon the truck to the rolling-mill or other apparatus for further treatment. The mold is made inl several parts, which are relatively movable, so that when brought together in operativeposition they form a tight mold excellently adapted to receive and hold the iluid metal until it solidifies sufficiently to be selfsustaining.

lVhile my invention isparticularly adapted to the casting of car-wheels, it may nevertheless be applied to various articles.

Referring to the drawings, Figure l is a sectional elevation of my improved molding apparatus, taken on line 0c a: of Fig. 2. Fig. 2 is a plan view of same. Y Fig. 3 is a side'elevation of same, and Fig. 4 is a side elevation showing the truck in the act of conveying the cast ingot from the molding-machine to the rolling-mill.

A is the truck-frame proper, and is provided with wheels, which run upon the two rails B B. This truck supports lthe central part C of the mold, which is formed of metal, and is rotated' by a shaft Z, which connects with thev gear Lari-angeli" below the truck. The part C, being heavy, is supported upon ball-bearings c', which permits its ready -rotation. Thepart C of the mold is provided with vertical projections c about its periphery.

Fncircling the mold part C is an annular..

ring portion D, which is adapted to be adjusted vertically upon the part C. The annular part D is provided with vertical grooves d, which receive the vertical projections 'c of the central part C, and thereby insure its being rotated with the part C during the casting operation. Arranged above the annular part' D and the central part C is lthe cap or coverE, which isprovided with a centralropening F, for receiving the metal, and an annular guidlng-rim e.

When the casting operation is taking place, the cap E restsV upon the annular part D. and rotates with it. The cap E may be raised or lowered by .the vertically-movable paris G, which are provided'with curved grooves g, in which the annular rim or ange c of the cap iE works. 'lhese parts G are guided in vertical guides H, and are movable vertically by means of cranks D and links M, the said cranks being secured-to' a shaft P and rocked by a hydraulic or steam engine R and crank or arm Q, connected to the piston-rod. The

annular part D is raised or lowered by means of vertically-m ovable arms l, carrying at their upper ends rollers fi, which press against the under side of the said part D and While holding it in a raised position permit it tobe vreadily rot-ated. These parts I are reciprocated vertically by means of links M and the cranks O. The construction is such thatV when the parts G are raised, the parts I-are lowered, thereby raising the cap E entirely clear of the ingot and lowering the annular part'D, so that it may rest upon the carriage,

as shownin Fig. 4. lVhen this is done, the v carriage, with the ingot U, may run along the` railway B and bevdelivered to the rollingi mill.

During the casting operation the 1noldis to be rotated, as before explained, and this is accomplished by making the gear L meshV with a gear L', secured to a shaft J, journaled in the pit and adapted to be rotated by a hand-wheel K-or other "suitable means. After. the ingot is cast the carriage is run in the direction indicated by the arrow, Fig. 3, which causes its gear L to be" drawn away from the gear L leaving the latter in its .iixed'position S is a steaimor waterl pipe leading to the engine R, and is provided with a valve Il for controlling the action of theeng'ineff`.Wfliere`vv a hole is desiredv in the ingot, a core' canf'be.

placed in the lmold C.y

I do not limit myself to the mere detailsot Pvhile the interior surfacesot' the arts .i P f are shown, as shaped' for -ajmcars'wheelfthey might be shaped for anyother type tof fwheel or other article adapted4 to-be made in 'fa'- mold of this class..V c .'f Having now described my inventiollgwhat 15 Iclaim as new, and desire to securebyfLet- 1. A mom consisting of a @tat-abnehmen' c part forming the under middle portion of the article to be molded, an annularpart -about said central part connected with it, so-as -t rotate with it, but withA freedom of vertical movement between said parts, one ofwhich is vertically movable with respect to theothe r,

said central part and extending up'ward'io.

form' the sides of the mold and movable ver-V tiocallywith respect to the central portion, and a removable cap or cover to iit over thecentral part and annular part, and means to'raise and lower said annular part, whereby the cast ingeti'm'ay be .supported upon the central part with a portion ofr its surface projecting `beyondsaid central supporting. part. Y

3. In a molding-machine, the combination of a moldconsisting of a central part forming the under middle article to be molded, an annular partencircling said central part and movable vertically with respect thereto, a. removable adapted to fit over the central part and annular part, and means to raise and lower said annular part, whereby the cast in got may be of -a mold ,consisting mold and being of less'. diameter thanthe and a cap or coverto t over the. central partv portion of the mold and being of ,less diameter than the diameterof-"the v unto set my hand.

cap or cover 'A supported upon the central part' with a por- .'.mold durinig the casting operation.

4. In amolding-machine, the combination of a central part forming the under Amiddle portion of the mold, an an-v nular part`- encirclingv said' central partV and movable vertically with respect thereto, and a Vcapc'rffcov'er adapted to iit over theannular and central parts and movable-vertically relative vlthereto, means for moving said annular part,`and capwhereby the cast ingot maybe su pported upon thecentral part and be other- Wise exposed foromanipulation after becoming solidified, means to rotate said mold during the casting operation, and a truck supporting the cover when the latter is raised.

. 5.. -In a molding-machine, the combination ofa truck A, a central mold part C, vsupported thereby, anannular movable part D, arranged about the part C and movable vertically thereon, a vertically-movable cap 1E, adapted vto rest upon the annular part D during the and'adapted to be run from under the cap or cast-ingoperation, and in which the internal -annular part and-central part of the mold y su rfaces of the parts C D E are formed to corn respond to the shape ot' the article to be cast, and power devices for raising or lowering the parts D and E. y l

6. In a molding-machine, the combination of a truck-A, a central mold part C, supported thereby, an annular movable part D, arranged about the part C and movable vertically thereon, a vertically-movable capE, adapted v to restA upon the annular part D during the casting operation, in which the internal surfaces ot the parts C D E are formed to correspond to the shape of the article to be cast, power devices for raising and lowering the parts D and E, and means to rotate the mold parts during the casting operation.

In testimony of which invention I have here- BENJAMIN F.

RITTENHOUSE. 

